Move JavaScript to root lib/ folder

lib/browser/api/session.js

@@ -0,0 +1,33 @@
+const EventEmitter = require('events').EventEmitter;
+const bindings = process.atomBinding('session');
+const PERSIST_PREFIX = 'persist:';
+
+// Returns the Session from |partition| string.
+exports.fromPartition = function(partition) {
+  if (partition == null) {
+    partition = '';
+  }
+  if (partition === '') {
+    return exports.defaultSession;
+  }
+  if (partition.startsWith(PERSIST_PREFIX)) {
+    return bindings.fromPartition(partition.substr(PERSIST_PREFIX.length), false);
+  } else {
+    return bindings.fromPartition(partition, true);
+  }
+};
+
+// Returns the default session.
+Object.defineProperty(exports, 'defaultSession', {
+  enumerable: true,
+  get: function() {
+    return bindings.fromPartition('', false);
+  }
+});
+
+var wrapSession = function(session) {
+  // session is an EventEmitter.
+  return session.__proto__ = EventEmitter.prototype;
+};
+
+bindings._setWrapSession(wrapSession);